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authorAndreas Jaeger <aj@suse.de>2000-05-12 07:01:25 +0000
committerAndreas Jaeger <aj@suse.de>2000-05-12 07:01:25 +0000
commitca5a4c3c9f8ec775c84aaaea06c494915acd389a (patch)
treefd3419ad39aab13af05e87e6cf7016b2043c9599 /misc/sys/cdefs.h
parentb227a3a6adcbf42ef4dfa0517777d2c4f5defa7b (diff)
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Update.
2000-05-11  Jan Hubicka  <jh@suse.cz>

	* misc/sys/cdefs.h: Add support for pure attribute.

	* include/string.h: Add __attribute_pure__ to various functions.
	* string/string.h: Likewise.
Diffstat (limited to 'misc/sys/cdefs.h')
-rw-r--r--misc/sys/cdefs.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/misc/sys/cdefs.h b/misc/sys/cdefs.h
index 5880fe9c5e..78c419244a 100644
--- a/misc/sys/cdefs.h
+++ b/misc/sys/cdefs.h
@@ -123,6 +123,15 @@
 # define __attribute_malloc__ /* Ignore */
 #endif
 
+/* At some point during the gcc 2.96 development the `pure' attribute
+   for functions was introduced.  We don't want to use it unconditionally
+   (although this would be possible) since it generates warnings.  */
+#if __GNUC_PREREQ (2,96)
+# define __attribute_pure__ __attribute__ ((__pure__))
+#else
+# define __attribute_pure__ /* Ignore */
+#endif
+
 /* It is possible to compile containing GCC extensions even if GCC is
    run in pedantic mode if the uses are carefully marked using the
    `__extension__' keyword.  But this is not generally available before